Open for work
Eetu Rantanen Product engineer Tampere, Finland

Building useful products with care, from UX details to shipped software.

Identity

Frontend-strong product engineer with a sharp design eye and growing full-stack range. I’m strongest where UX quality, product thinking, and implementation meet. I like turning rough ideas into polished, useful software. Husband, dad of two boys and a dog, former semi-pro volleyball player, builder by nature.

Currently

Building Liquipedia at Team Liquid, where I work on shared product systems, user-facing features, and platform improvements in a product team. On the side, I build and test my own product ideas.

What I bring

Strong frontend craft with high standards for UX quality.

Comfort turning ambiguous ideas into clear, shipped experiences.

Experience working across design, product, and engineering in real teams.

Ability to move between interaction detail, system thinking, and implementation.

Interests

Useful UX, fast iteration, tools that reduce friction, and products that earn their place. AFK: drums, darts, and most sports involving a ball.

Languages

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Javascript
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Typescript
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React
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PHP
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Laravel
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Lua
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Livewire
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Tailwind
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Git
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HTML
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CSS

Tools

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Claude Code
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Pi
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Figma
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Linear
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Docker
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Cloudflare
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Webflow
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Coolify
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Notion
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OpenCode
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Obsidian

Operating on

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Linux
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Arch Linux
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Neovim
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Tmux
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Hyprland
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Android

Product work I've shaped across teams, systems, and zero-to-one ideas

Liquipedia

At Liquipedia, I work on shared product systems, redesigns, and platform features across one of the world’s largest esports wiki platforms, improving consistency, usability, and maintainability at scale.

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SignCircle

I co-founded SignCircle, a sports-tech startup, and led it from idea to alpha, shaping the product across strategy, brand, UX, and implementation while validating demand with 200 signups and a 300-person waitlist.

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Team Liquid

At Team Liquid, I led Webflow development across marketing and fan-facing experiences, combining frontend implementation, design collaboration, and product-minded improvements at scale.

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Vennu

For Vennu, I designed and built a custom healthcare website that balanced visual quality, usability, and maintainable CMS-driven content for a non-technical team.

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Kuasi

As Lead Webflow Developer at Kuasi, I built and standardized advanced client solutions, combining frontend development, technical architecture, and process improvement across agency projects.

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Personal Site

I built a new personal site as both a portfolio and a learning project, using it to deepen my full-stack skills while creating a polished, maintainable product for my own use.

Read case study

Open to the right next thing whether that’s a product team, a startup, or a good conversation.

Find me here:

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LinkedIn
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GitHub
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X